Unit 2 Vocabulary (Energy, Circuits, and Light)

Front

What is a closed (complete or working) circuit?

Back

A closed circuit is a path through which an electric current can flow without interruption.

Front

What is electric current?

Back

Electric current is the flow of electricity through a conductor.

Front

What is sound energy?

Back

Sound energy is energy produced by vibrations.

Front

What is energy?

Back

Energy is the ability to do work.

Front

What is thermal energy?

Back

Thermal energy is energy related to the temperature of an object or a substance.

Front

What is an open (incomplete or broken) circuit?

Back

An open circuit is a path through which an electric current cannot flow due to a break in the circuit.

Front

What is electrical energy?

Back

Electrical energy is the energy caused by the movement of electrons.

Front

What is light energy?

Back

Light energy is a form of energy that is visible to the human eye and is produced by the vibrations of electrically charged particles.

Front

What is mechanical energy?

Back

Mechanical energy is the sum of potential energy and kinetic energy in an object.

Front

What is a conductor?

Back

A conductor is a material that allows electric current to flow through it easily.